body{
    background-image: url("../image/bg.jpg");
}
/* region顶部开始*/
.page-header{
    height: 70px;
    background-color:  rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}
.page-header-nav{
    display: flex;
}
.page-header-nav li a{
    color: white;
    font-size: 20px;
    border: 1px solid white;
    border-radius: 8px;
    padding: 10px   ;
    margin-right: 20px;
}
.page-header-nav li:last-child a{
    margin-right: 0;
}
/* endregion顶部开始*/


/*region内容区*/
.page-content{
    display: flex;
    height: calc(100vh - 70px);
}
.content-nav{
    width: 1000px;
    height: 300px;
    margin: auto;
    display: flex;

    /*align-items: ;*/
}
.content-nav-item{
    width: 180px;
    height: 200px;
    margin: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-evenly;
    transition: 0.2s linear;
    cursor: pointer;

}
.content-nav-item:hover{
    box-shadow: 0px 0px 20px black;
}
.content-nav-item span{
    color: white;
    font-size: 20px;

}
.content-nav .content-nav-item:nth-child(1) {
    background-color:#595CA8;
}
.content-nav .content-nav-item:nth-child(2) {
    background-color:#FF9D2E;
}
.content-nav .content-nav-item:nth-child(3) {
    background-color:#01A6DE;
}
.content-nav .content-nav-item:nth-child(4) {
    background-color:#015E91;
}
.content-nav .content-nav-item:nth-child(5) {
    background-color:#1DC128;
}
/*endregion内容区*/